Floating purification device and method for river pollution outlet

Abstract

The application discloses a floating purification device for a river sewage outlet, comprising a mounting frame; two connecting frames are fixedly installed on the two sides of the mounting frame, and the same floating body is fixedly installed on the two connecting frames on the same side; two U-shaped frames are slidingly installed on the mounting frame, and a sewage purification structure is installed on the two U-shaped frames. The application also discloses a floating purification method for the river sewage outlet. When in operation, the device can be placed at the river sewage outlet, the floating body is floated on the water surface, and the electric pump is used to pump water into the purification box, so that the water is discharged after being purified by the solid microbial carrier layer and the braided curtain type biological membrane carrier. The electric pump can promote the water to pass through the solid microbial carrier layer and the braided curtain type biological membrane carrier, thereby improving the purification efficiency of the water. The height of the purification box can be adjusted by rotating the handle, so that the device can be used in rivers with different depths, thereby improving the applicability and stability of the device.

Description

Floating purification device and method for river sewage outlets Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a floating purification device and method for river discharge outlets. Background Technology

[0002] Among current river sewage outlet purification technologies, the application of solid microbial carriers is a common and relatively effective method. This involves attaching microorganisms to solid carriers to purify the water, utilizing the metabolic processes of these microorganisms to degrade organic pollutants into harmless inorganic substances. However, existing solid microbial carrier technologies have many limitations and bottlenecks when treating actual river sewage outlets, especially when the sewage has poor flowability, making it difficult to achieve efficient purification.

[0003] Current technologies typically place solid microbial carriers near sewage outlets, relying on natural water flow to purify wastewater through contact with the microorganisms on the carriers. However, the environment at river outlets is complex and uncontrollable, especially when flow velocities are low or the water is stagnant. In these conditions, the contact between wastewater and the microbial carriers decreases significantly, leading to low purification efficiency. Due to the poor natural flow of the water, the wastewater's residence time on the microbial carrier surface is insufficient, failing to ensure adequate reaction between pollutants and microorganisms, thus limiting the overall treatment effect. Furthermore, over time, the surface of the solid carrier is easily covered with contaminants, reducing microbial activity and carrier permeability, further hindering purification efficiency.

[0004] Current technologies lack effective control over water flow direction and velocity, failing to effectively address the issue of fluctuating sewage flow at river outfalls, resulting in poor operational stability of purification devices. For microorganisms, the concentration of dissolved oxygen and organic pollutants in sewage directly affects their metabolic efficiency; however, traditional purification systems cannot dynamically adjust these parameters, lack optimized control over the microbial environment, and cannot cope with the demands of complex water quality changes, leading to unsatisfactory sewage treatment results.

[0005] Furthermore, the structural design of existing floating purification equipment also has shortcomings. Traditional devices are mostly fixed, making it difficult to adapt to changes in river water levels. Especially during the flood season or dry season, the purification effect can be affected by the unsuitable location of the device. At the same time, the maintenance and operation costs of traditional purification methods are high. In particular, when pollutants accumulate on the surface of solid carriers, it is easy to cause blockage and functional degradation of the purification device, requiring frequent manual cleaning and maintenance, which increases operating costs and management difficulty.

[0006] In summary, existing solid microbial carrier purification technologies for river outfalls face a series of problems, including insufficient contact between wastewater and microorganisms, inadequate wastewater flow control, difficulty in dissolved oxygen regulation, poor equipment adaptability, and high maintenance costs. Therefore, there is an urgent need for a novel floating purification device and method for river outfalls that can maintain high purification efficiency under low flow velocity and water level fluctuations, possess adaptive water level regulation capabilities, and dynamic wastewater treatment capacity, thereby overcoming the shortcomings of existing technologies. Summary of the Invention

[0007] The purpose of this invention is to provide a floating purification device for river sewage outlets to solve the problems mentioned in the background art. It mainly achieves efficient degradation of pollutants, low-cost operation, and long-term stability of the equipment by optimizing the configuration of microbial carriers, introducing a floating support structure, adding a dissolved oxygen regulating device, and effectively guiding and controlling the water flow, thereby significantly improving the treatment effect of sewage from river sewage outlets.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A floating purification device for river sewage outlets includes a mounting frame; two connecting frames are fixedly installed on both sides of the mounting frame, and the same float is fixedly installed on the two connecting frames on the same side; two U-shaped frames are slidably installed on the mounting frame, sewage purification structures are installed on the two U-shaped frames, adjustment structures are installed on the U-shaped frames, positioning frames are installed on the sewage purification structures, and filter structures are installed on the positioning frames; fixed plates are fixedly installed on both sides of the mounting frame, and the same impurity recovery structure is installed on the two fixed plates on the same side.

[0010] The wastewater purification structure includes a purification tank, which is fixedly installed on the bottom side of two U-shaped frames. Two partition plates are fixedly installed on the inner wall of the purification tank. Two water-passing partition plates are fixedly installed on the side of the two partition plates that are close to each other. A solid microbial carrier layer is provided between the two water-passing partition plates. Multiple braided biofilm carriers are connected to the inner wall of the purification tank. Two filter water-passing plates are fixedly installed on the purification tank, and both filter water-passing plates are connected to the purification tank. L-shaped connecting frames are fixedly installed on both sides of the mounting frame. Water inlet hoppers are fixedly installed on both L-shaped connecting frames. Telescopic corrugated pipes are fixedly installed on the bottom side of both water inlet hoppers, and the two telescopic corrugated pipes are respectively connected to the two water inlet hoppers. Connecting pipes are fixedly installed at one end of each of the two telescopic corrugated pipes, and the two connecting pipes are respectively connected to the two telescopic corrugated pipes. Electric pumps are fixedly installed at one end of each of the two connecting pipes. Two conveying pipes are fixedly installed on each of the two electric pumps. The other ends of the two conveying pipes penetrate the purification tank and extend into the purification tank. Multiple water outlets are fixedly installed on each of the two conveying pipes, and the water outlets are located between the two partition plates.

[0011] Preferably, the adjustment structure includes two handles, one end of each handle is fixedly mounted with a lifting adjustment screw, the two lifting adjustment screws are respectively rotatably mounted on two U-shaped frames, one end of the two lifting adjustment screws is rotatably mounted on one side of the same purification box, and both lifting adjustment screws are threaded onto the mounting frame.

[0012] Preferably, the inner wall of the mounting bracket is provided with a threaded hole, and the lifting adjustment screw is threadedly installed in the threaded hole.

[0013] Preferably, the filter structure includes a filter frame, which is fixedly installed on the bottom side of the positioning frame. The filter frame is located inside the water inlet hopper, and the positioning frame is movably installed on the water inlet hopper.

[0014] Preferably, the impurity recovery structure includes two drive shafts, with the two ends of the two drive shafts rotatably mounted on two fixed plates respectively. Each drive shaft is fixedly sleeved with a drive roller, and the same drive belt is driven and installed on the two drive rollers. A linkage frame is fixedly installed on one side of the drive belt, and the linkage frame is fixedly installed on the top side of the positioning frame. A recovery motor is fixedly installed on one side of the fixed plate, and the output end of the recovery motor is fixedly installed on one side of a corresponding drive shaft.

[0015] Preferably, a positioning frame is fixedly installed on the top side of the mounting frame, and a recycling bin is movably installed on the positioning frame.

[0016] Preferably, the inner wall of the positioning frame is provided with a slot, and a card block is movably installed in the slot. The card block is fixedly installed on one side of the recycling bin.

[0017] Preferably, the inner wall of the fixing plate has two rotating shaft holes, and two drive shafts are rotatably installed in the two rotating shaft holes respectively.

[0018] Preferably, the inner wall of the mounting bracket is symmetrically provided with four guide sliding holes, and the two ends of the two U-shaped brackets are respectively slidably installed in the four guide sliding holes.

[0019] Preferably, the solid microbial carrier layer is composed of multiple solid microbial carriers.

[0020] The present invention also includes a floating purification method for river discharge outlets, the method comprising the following steps:

[0021] S1. Device Placement: Place the floating purification device at the river's sewage outlet, allowing the mounting frame to float on the water surface. Adjust the distance between the float and the water surface using the floating stabilization device to ensure stability despite changes in water flow. The floating support structure design allows the purification device to adapt to changes in river water level, thus ensuring the continuity and effectiveness of the purification process.

[0022] S2. Water Inlet Operation: Start the electric pump to draw wastewater from the drain outlet into the inlet hopper through the telescopic corrugated pipe and connecting pipe, allowing the wastewater to smoothly enter the purification system. During this process, the telescopic corrugated pipe can freely adjust according to water level changes, ensuring that wastewater is continuously and evenly pumped into the system. The inlet hopper is located above the purification tank, and through a reasonable water flow guidance design, wastewater can enter the purification tank smoothly, reducing the generation of turbulence.

[0023] S3. Solid Microbial Carrier Layer Treatment: Pumped wastewater is introduced into the purification tank through a delivery pipe, allowing the water to pass sequentially through a partition plate and a solid microbial carrier layer. The solid microbial carrier layer contains a large number of functional microorganisms, which decompose organic pollutants in the water through metabolism, achieving preliminary purification. The partition plate evenly distributes the water flow, ensuring sufficient contact between the wastewater and the solid microbial carrier layer, guaranteeing the uniformity and efficiency of the entire purification process.

[0024] S4. Braided Curtain Biofilm Carrier Treatment: After treatment with a solid microbial carrier layer, the water enters the braided curtain biofilm carrier. The braided curtain structure provides a favorable attachment environment for microorganisms, increasing the contact area with the water. The microbial community growing on the biofilm further decomposes organic pollutants in the water, further reducing the pollutant concentration. The special design of the braided curtain structure allows water to be fully distributed between the braids as it flows through, forming a continuous biodegradation zone.

[0025] S5. Filtration Process: After being treated by the biofilm carrier, the water continues to flow through the filter plate (46) for physical filtration. The filter plate adopts a multi-layer design with different pore sizes to intercept fine particles and suspended solids in the water. Through multi-stage filtration, not only are particles in the water effectively removed, but the transparency of the water is also improved, providing a guarantee for subsequent drainage and ensuring that the final discharged water meets the water quality requirements.

[0026] S6. Wastewater Circulation: Two partitions create a circulating water flow within the purification tank, ensuring that the water repeatedly passes through the solid microbial carrier layer and the braided biofilm carrier. This circulating flow ensures that most pollutants in the water can fully contact the microorganisms and be efficiently degraded. The partitions limit the water flow path to a specific range, preventing short-circuiting and improving purification efficiency and stability.

[0027] S7. Height Adjustment: The height of the purification tank can be adjusted using the handle and lifting adjustment screw. The submersion depth of the purification tank can be adjusted according to changes in the river's water level to ensure that water can fully enter the purification device under different water level conditions. This height adjustment function allows the equipment to maintain efficient operation even with significant water level fluctuations, enhancing the adaptability and flexibility of the purification system.

[0028] S8. Impurity Recovery: During the pumping and purification process, floating impurities on the water surface are intercepted by the filter frame. When the impurities accumulate to a certain level in the filter frame, the recovery motor is activated. The recovery motor drives the transmission belt to automatically transfer the impurities to the recovery tank for centralized processing. This step ensures that floating objects on the water surface do not obstruct the operation of the purification device and allows for the regular collection and cleaning of impurities, ensuring the long-term stable operation of the system.

[0029] S9. Post-Purification Discharge: The water, after undergoing multi-stage purification, is discharged into the river through an outlet. A flow control device is installed at the outlet to regulate the discharge rate and prevent adverse effects on the downstream river. The discharged water undergoes comprehensive treatment through a solid microbial carrier layer, a braided biofilm carrier, and a filter plate, resulting in significantly improved water quality that meets the set discharge standards and ensures environmental friendliness.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] 1. Adaptive Water Level Regulation: This invention utilizes a floating support structure design to allow the purification device to adjust its height according to changes in river water level, ensuring that the device always operates at its optimal state. The cooperation between the float and the mounting frame enables automatic adaptation to water level changes, especially under extreme conditions such as flood season or dry season, ensuring the continuity and stability of the purification process.

[0032] 2. Optimized wastewater-microorganism contact efficiency: The arrangement of the partition plates and solid microbial carrier layer within the purification tank allows for more even distribution of wastewater as it passes through the solid microbial carrier. The two partition plates effectively guide the water flow path, preventing wastewater short-circuiting and ensuring sufficient contact between the wastewater and the microbial carrier, thereby increasing the degradation time and efficiency of organic pollutants.

[0033] 3. Braided Curtain Biofilm Carrier Enhancement Design: The braided curtain biofilm carrier structure further increases the contact area between the water and the biofilm. The braided curtain structure is suspended inside the purification tank, forming multi-layered water flow channels to ensure that the water is evenly distributed during flow, fully contacting the biofilm and improving the degradation effect of organic pollutants.

[0034] 4. Dynamic Wastewater Circulation and Self-Cleaning Capability: The circulating water flow created within the purification tank by two partitions ensures that wastewater repeatedly passes through the solid microbial carrier layer and the braided biofilm carrier, extending the contact time between pollutants and microorganisms, thereby improving pollutant removal efficiency. Simultaneously, the self-cleaning design effectively prevents the accumulation of contaminants on the surface of the solid microbial carrier, reducing the frequency of manual cleaning and lowering maintenance costs.

[0035] 5. Multi-stage filtration and pollutant interception: After the wastewater undergoes microbial degradation, a filter plate is installed for physical filtration. The multi-layered design with different pore sizes effectively traps suspended particles and fine impurities in the water. This multi-stage filtration system not only removes residual pollutants but also improves water transparency, ensuring that the effluent meets discharge standards.

[0036] 6. Automatic Impurity Recovery System: The impurity recovery structure of this invention adopts a design combining a drive shaft and a drive belt. When impurities accumulate to a certain level within the filter frame, the drive belt, driven by a recovery motor, automatically transfers the impurities to a recovery box for centralized processing. This design reduces manual operation, improves the system's automation level and maintenance convenience, and ensures long-term stable operation of the equipment.

[0037] 7. Intelligent Dissolved Oxygen Regulation: In this invention, the water is oxygenated through an air aeration device, increasing the concentration of dissolved oxygen in the water, promoting the metabolic activity of microorganisms, and thus improving the degradation rate of organic pollutants. Dynamic regulation of dissolved oxygen allows microorganisms to operate in an optimal environment, making it particularly suitable for treating wastewater with high organic matter concentrations, thereby enhancing the overall treatment effect.

[0038] 8. Floating Inlet and Telescopic Corrugated Pipe Design: The combination of a telescopic corrugated pipe and an electric pump ensures that wastewater can be continuously and stably pumped into the purification system under different water level conditions. The design of the telescopic corrugated pipe allows it to adjust freely with changes in water level, avoiding the impact of water level fluctuations on the inlet process and ensuring the inlet stability of the entire system.

[0039] 9. Modular components facilitate expansion and maintenance: This invention adopts a modular design, where each component, such as the purification box, water inlet, and filter frame, can be independently disassembled and replaced. This modular design facilitates equipment expansion and maintenance, reduces downtime, improves equipment maintainability and service life, and makes the entire system more flexible and adaptable.

[0040] 10. Environmentally friendly and low-cost operation: Through floating support and an automatic adjustment system, this invention reduces reliance on external power, and the automatic impurity recovery and self-cleaning design significantly reduces the frequency of manual maintenance. These innovative designs not only reduce the operating and maintenance costs of the equipment but also improve the economic efficiency and environmental friendliness of wastewater treatment, meeting the current requirements for energy conservation and emission reduction in water environment management. Attached Figure Description

[0041] Figure 1 is a three-dimensional structural diagram of the floating purification device for river sewage outlets proposed in this invention;

[0042] Figure 2 is a side view of the floating purification device for river sewage outlets proposed in this invention.

[0043] Figure 3 is a partial structural schematic diagram of the floating purification device for river sewage outlets proposed in this invention;

[0044] Figure 4 is a cross-sectional schematic diagram of the floating purification device for river sewage outlets proposed in this invention.

[0045] Figure 5 is a schematic diagram of the inlet bucket structure of the floating purification device for river sewage outlets proposed in this invention.

[0046] Figure 6 is a schematic diagram of the transmission belt structure of the floating purification device for river sewage outlets proposed in this invention.

[0047] Figure 7 is a schematic cross-sectional view of the transmission roller structure of the floating purification device for river sewage outlets proposed in this invention.

[0048] Figure 8 is a schematic diagram of the recovery box structure of the floating purification device for river sewage outlets proposed in this invention;

[0049] Figure 9 is a schematic diagram of the guide sliding hole structure of the floating purification device for river sewage outlets proposed in this invention;

[0050] Figure 10 is a schematic diagram of the U-shaped frame structure of the floating purification device for river sewage outlets proposed in this invention.

[0051] In the diagram: 1. Mounting frame; 2. Connecting frame; 3. Float; 4. U-shaped frame; 41. Purification box; 42. Divider plate; 43. Divider water passage plate; 44. Solid microbial carrier layer; 45. Braided curtain biofilm carrier; 46. Filter water passage plate; 47. L-shaped connecting frame; 48. Water inlet hopper; 49. Telescopic corrugated pipe; 410. Connecting pipe; 411. Electric pump; 412. Delivery pipe; 413. Water outlet; 414. Guide sliding hole; 5. Handle; 51. Lifting adjustment screw; 52. Threaded hole; 6. Positioning frame; 61. Filter frame; 7. Fixing plate; 71. Drive shaft; 72. Drive roller; 73. Drive belt; 74. Linkage frame; 75. Recovery motor; 76. Positioning frame; 77. Recovery box; 78. Slot; 79. Locking block; 710. Rotary shaft hole. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] Example 1: Please refer to Figures 1-10. The present invention provides a technical solution: a floating purification device for river sewage outlets, including a mounting frame 1; two connecting frames 2 are fixedly installed on both sides of the mounting frame 1, and the same float 3 is fixedly installed on the two connecting frames 2 on the same side; two U-shaped frames 4 are slidably installed on the mounting frame 1, sewage purification structures are installed on the two U-shaped frames 4, adjustment structures are installed on the U-shaped frames 4, positioning frames 6 are installed on the sewage purification structures, and filter structures are installed on the positioning frames 6; fixed plates 7 are fixedly installed on both sides of the mounting frame 1, and the same impurity recovery structure is installed on the two fixed plates 7 on the same side.

[0054] The wastewater purification structure includes a purification tank 41, which is fixedly installed on the bottom sides of two U-shaped frames 4. Two partition plates 42 are fixedly installed on the inner wall of the purification tank 41. Two water-passing partition plates 43 are fixedly installed on the side of the two partition plates 42 that are close to each other. A solid microbial carrier layer 44 is provided between the two water-passing partition plates 43. Multiple braided curtain-type biofilm carriers 45 are connected to the inner wall of the purification tank 41. Two filter water-passing plates 46 are fixedly installed on the purification tank 41, and both filter water-passing plates 46 are connected to the purification tank 41. L-shaped connecting frames 47 are fixedly installed on both sides of the mounting frame 1. Each of the two connecting frames 47 is fixedly equipped with a water inlet hopper 48. A telescopic corrugated pipe 49 is fixedly installed on the bottom side of each of the two water inlet hoppers 48. Each of the two telescopic corrugated pipes 49 is connected to one end of a connecting pipe 410, which is connected to the two telescopic corrugated pipes 49. An electric pump 411 is fixedly installed on one end of each of the two connecting pipes 410. Two delivery pipes 412 are fixedly installed on one end of each of the two electric pumps 411. The other ends of both delivery pipes 412 penetrate the purification box 41 and extend into it. Each delivery pipe 412 is fixedly equipped with multiple outlets 413, located between two partition plates 42. In use, the device is placed at the river discharge outlet. Two floats 3 allow the device to float on the river surface and adjust its position according to the river level. The inlet hopper 48 is partially submerged, while the filter plate 46 is completely submerged. In cases of high water flow, the device can be tied to the connecting frame 2 with ropes, the other end of which is secured to the bank to prevent it from being washed away. During use, the electric pumps 411 on both sides can be turned on. The electric pumps 411 utilize the connecting pipe 410 and the telescopic corrugated... Pipe 49 pumps water into inlet hopper 48 and into the space between two partition plates 42. This accelerates the flow of water between partition plate 43 and solid microbial carrier layer 44. As the water passes through solid microbial carrier layer 44, the microorganisms on the carrier adsorb organic pollutants and other harmful substances in the water. The water then flows through the space above the two partition plates 42 and comes into contact with braided biofilm carrier 45. This allows the pollutants in the wastewater to fully contact the biofilm growing on filter plate 46, thereby achieving biodegradation and completing the filtration and purification of wastewater.

[0055] Furthermore, the adjustment structure includes two handles 5, one end of which is fixedly equipped with a lifting adjustment screw 51. The two lifting adjustment screws 51 are rotatably mounted on two U-shaped frames 4 respectively. One end of the two lifting adjustment screws 51 is rotatably mounted on one side of the same purification box 41. Both lifting adjustment screws 51 are threaded onto the mounting frame 1. Rotating the handles 5 can drive the lifting adjustment screws 51 to rotate. The rotating lifting adjustment screws 51 can drive the U-shaped frames 4 to move vertically. The continuously moving U-shaped frames 4 can drive the purification box 41 to rise and fall, thereby adjusting the height of the purification box 41 in the river channel so as to adjust according to the depth of the river channel.

[0056] Furthermore, the inner wall of the mounting bracket 1 is provided with a threaded hole 52, and the lifting adjustment screw 51 is threadedly installed in the threaded hole 52. The rotating lifting adjustment screw 51 can move in the threaded hole 52 through the threaded engagement with the threaded hole 52.

[0057] Furthermore, four guide sliding holes 414 are symmetrically opened on the inner wall of the mounting bracket 1. The two ends of the two U-shaped brackets 4 are respectively slidably installed in the four guide sliding holes 414. When the U-shaped brackets 4 are raised or lowered, they can slide in the corresponding guide sliding holes 414, thereby preventing the U-shaped brackets 4 from shifting.

[0058] Furthermore, the solid microbial carrier layer 44 is composed of multiple solid microbial carriers.

[0059] The working principle is as follows: When in use, the device is placed at the sewage outlet of the river. The two floats 3 allow the device to float on the river surface and can be raised and lowered according to the river level. The inlet hopper 48 is partially submerged in the river, while the filter plate 46 is completely submerged. When the water flow is large, it can be tied to the connecting frame 2 with a rope, and the other end of the rope can be fixed to the bank to prevent the device from being washed away. When in use, the electric pumps 411 on both sides can be turned on. The electric pumps 411 can pump water through the connecting pipe 410, the telescopic corrugated pipe 49 and the inlet hopper 48, so that the water flows into the inlet hopper 48. Impurities floating on the water surface are blocked and filtered by the filter frame 61 when they are sucked into the inlet hopper 48. The electric pumps 411 can also pump the pumped water through the delivery pipe 412 and multiple outlets. The inlet 413 is located between the two partition plates 42, which accelerates the flow of water through the partition plate 43 and the solid microbial carrier layer 44. When the water flows through the solid microbial carrier layer 44, the microorganisms on the carrier can adsorb organic pollutants and other harmful substances in the water. Then the water flows through the space above the two partition plates 42 and comes into contact with the braided curtain biofilm carrier 45, so that the pollutants in the sewage can fully contact the biofilm growing on the filter plate 46, thereby achieving biodegradation and completing the filtration and purification of sewage. Finally, the sewage will flow out through the filter plates 46 on both sides. By turning the handle 5, the lifting adjustment screw 51 can be rotated. The rotating lifting adjustment screw 51 can be engaged with the threaded hole 52. The screw 51 moves within the threaded hole 52, allowing it to rotate on the U-shaped frame 4 and move vertically. The vertically moving U-shaped frame 4 slides within the two solid microbial carrier layers 44, preventing displacement. The continuously moving U-shaped frame 4 raises and lowers the purification box 41, adjusting its height within the river channel to accommodate different depths. The telescopic corrugated pipe 49 adapts to the height adjustment of the purification box 41. When excessive impurities accumulate in the filter frame 61, the corresponding recovery motor 75 is activated. The output of the recovery motor 75 drives one of the drive shafts 71 to rotate, causing the drive shaft 71 to rotate the drive roller 72. The two drive rollers 72 then interact with the transmission... The transmission between belts 73 allows the two transmission rollers 72 to rotate simultaneously, causing the transmission belt 73 to move in a circular motion. This circular motion of the transmission belt 73 drives the positioning frame 6 to rise via the linkage frame 74, causing the positioning frame 6 to disengage the filter frame 61 from the inlet hopper 48. When the linkage frame 74 moves to a corner, the circular motion of the transmission belt 73 causes the positioning frame 6 and filter frame 61 to flip, emptying the impurities from the filter frame 61 into the recovery box 77. After emptying, the drive recovery motor 75 reverses its output, lowering the filter frame 61 back into the inlet hopper 48 for continued filtration. Pulling the recovery box 77 upwards causes the locking block 79 to disengage from the slot 78.This is to facilitate the centralized cleaning of impurities within recycling bin 77.

[0060] The floating purification method for river sewage outlets using the apparatus described in this embodiment includes the following steps:

[0061] S1. Device Placement: Place the floating purification device at the river's sewage outlet, allowing the mounting frame to float on the water surface. Adjust the distance between the float and the water surface using the floating stabilization device to ensure stability despite changes in water flow. The floating support structure design allows the purification device to adapt to changes in river water level, thus ensuring the continuity and effectiveness of the purification process.

[0062] S2. Water Inlet Operation: Start the electric pump 411 to pump sewage from the drain outlet into the inlet hopper 48 through the telescopic corrugated pipe 49 and connecting pipe 410, allowing the sewage to smoothly enter the purification system. During this process, the telescopic corrugated pipe can freely adjust according to water level changes to ensure that sewage is continuously and evenly pumped into the system. The inlet hopper 48 is located above the purification tank, and through a reasonable water flow guidance design, sewage can enter the purification tank smoothly, reducing the generation of turbulence.

[0063] S3. Solid Microbial Carrier Layer Treatment: The pumped wastewater is introduced into the purification tank 41 through the delivery pipe 412, allowing the water to pass sequentially through the partition plate 43 and the solid microbial carrier layer 44. The solid microbial carrier layer 44 is covered with a large number of functional microorganisms, which decompose organic pollutants in the water through metabolism, achieving preliminary purification. The partition plate 43 is used to evenly distribute the water flow, ensuring sufficient contact between the wastewater and the solid microbial carrier layer, thus ensuring the uniformity and efficiency of the entire purification process.

[0064] S4. Braided Curtain Biofilm Carrier Treatment: After treatment with the solid microbial carrier layer, the water enters the braided curtain biofilm carrier 45. The braided curtain structure provides a favorable attachment environment for microorganisms, increasing the contact area with the water. The microbial community growing on the biofilm further decomposes organic pollutants in the water, further reducing the pollutant concentration. The special design of the braided curtain structure allows water to be fully distributed between the braids as it flows through, forming a continuous biodegradation zone.

[0065] S5. Filtration Process: After treatment by the biofilm carrier, the water continues to flow through the filter plate 46 for physical filtration. The filter plate adopts a multi-layer design with different pore sizes to intercept fine particles and suspended solids in the water. Through multi-stage filtration, not only are particulate matter in the water effectively removed, but the water transparency is also improved, ensuring that subsequent drainage meets water quality requirements.

[0066] S6. Wastewater Circulation: A circulating water flow is formed within the purification tank via two partition plates 42, ensuring that the water repeatedly passes through the solid microbial carrier layer 44 and the braided biofilm carrier 45. This circulating flow ensures that most pollutants in the water can fully contact the microorganisms, thus being efficiently degraded. The partition plates limit the water flow path to a specific range, preventing short-circuiting and improving purification efficiency and stability.

[0067] S7. Height Adjustment: The height of the purification tank 41 is adjusted using handle 5 and lifting adjustment screw 51. The submersion depth of the purification tank is adjusted according to changes in the river water level to ensure that water can fully enter the purification device under different water level conditions. The height adjustment function enables the equipment to maintain efficient operation even when the water level fluctuates significantly, enhancing the adaptability and flexibility of the purification system.

[0068] S8. Impurity Recovery: During the pumping and purification process, floating impurities on the water surface are intercepted by the filter frame 61. When the impurities in the filter frame accumulate to a certain level, the recovery motor 75 is activated. The recovery motor drives the transmission belt 73 to automatically transfer the impurities to the recovery box 77 for centralized processing. This step ensures that floating objects on the water surface do not obstruct the operation of the purification device and allows for the regular collection and cleaning of impurities, ensuring the long-term stable operation of the system.

[0069] S9. Post-Purification Discharge: The water, after multi-stage purification, is discharged into the river through outlet 413. A flow control device is installed at the outlet to regulate the discharge speed and prevent adverse effects on the downstream river. After comprehensive treatment by a solid microbial carrier layer, a braided biofilm carrier, and a filter plate, the discharged water quality is significantly improved, meeting the set discharge standards and ensuring environmental friendliness.

[0070] Example 2: As shown in Figures 1-8, to prevent impurities from being sucked in during the pumping process, a filter structure is arranged on the positioning frame 6, and an impurity recovery structure is arranged on the fixed plate 7. The filter structure includes a filter frame 61, which is fixedly installed on the bottom side of the positioning frame 6 and located inside the water inlet hopper 48. The positioning frame 6 is movably installed on the water inlet hopper 48. The impurity recovery structure includes two drive shafts 71, with their ends rotatably mounted on two fixed plates 7. Each drive shaft 71 is fixedly fitted with a drive roller 72, and the same drive belt 73 is driven and installed on both drive rollers 72. A linkage frame 74 is fixedly installed on one side of the drive belt 73 and is fixedly installed on the top side of the positioning frame 6. A recovery motor 75 is fixedly installed on one side of the fixed plate 7, and the output end of the recovery motor 75 is fixedly installed on one of the corresponding drive shafts 71. On the side, a positioning frame 76 is fixedly installed on the top side of the mounting frame 1. A recycling box 77 is movably installed on the positioning frame 76. A slot 78 is opened on the inner wall of the positioning frame 76. A locking block 79 is movably installed in the slot 78. The locking block 79 is fixedly installed on one side of the recycling box 77. Two rotating shaft holes 710 are opened on the inner wall of the fixing plate 7. Two drive shafts 71 are rotatably installed in the two rotating shaft holes 710 respectively. When the impurities floating on the water surface are sucked into the water inlet 48 with the water, they will be blocked and filtered by the filter frame 61. When too many impurities accumulate in the filter frame 61, the corresponding recycling motor 75 can be turned on to pour the impurities in the filter frame 61 into the recycling box 77. After the pouring is completed, the recycling motor 75 is driven to reverse its output end, so that the filter frame 61 can be lowered back into the water inlet 48 for continuous filtration. The remaining features are the same as in embodiment 1.

[0071] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A floating purification device for river sewage outlets, comprising a mounting frame (1); characterized in that: Two connecting frames (2) are fixedly installed on both sides of the mounting frame (1). The same float (3) is fixedly installed on the two connecting frames (2) on the same side. Two U-shaped frames (4) are slidably installed on the mounting frame (1). A sewage purification structure is installed on the two U-shaped frames (4). An adjustment structure is installed on the U-shaped frames (4). A positioning frame (6) is installed on the sewage purification structure. A filter structure is installed on the positioning frame (6). Fixing plates (7) are fixedly installed on both sides of the mounting frame (1). The two fixing plates (7) on the same side are fixedly installed on both sides. 7) The same impurity recovery structure is installed on it; the sewage purification structure includes a purification box (41), the purification box (41) is fixedly installed on the bottom side of two U-shaped frames (4), two partition plates (42) are fixedly installed on the inner wall of the purification box (41), two partition water-passing plates (43) are fixedly installed on the side of the two partition plates (42) that are close to each other, a solid microbial carrier layer (44) is provided between the two partition water-passing plates (43), and multiple braided curtain biofilm carriers (45) are connected to the inner wall of the purification box (41). 1) Two filter water passage plates (46) are fixedly installed on the top, and both filter water passage plates (46) are connected to the purification box (41). L-shaped connecting brackets (47) are fixedly installed on both sides of the mounting bracket (1). Water inlet hoppers (48) are fixedly installed on both L-shaped connecting brackets (47). Telescopic corrugated pipes (49) are fixedly installed on the bottom side of both water inlet hoppers (48). The two telescopic corrugated pipes (49) are connected to the two water inlet hoppers (48) respectively. A connecting pipe (41) is fixedly installed at one end of each of the two telescopic corrugated pipes (49). 0), two connecting pipes (410) are connected to two telescopic corrugated pipes (49) respectively. One end of each connecting pipe (410) is fixedly installed with an electric pump (411). One end of each electric pump (411) is fixedly installed with two conveying pipes (412). The other end of each conveying pipe (412) passes through the purification box (41) and extends into the purification box (41). Multiple water outlets (413) are fixedly installed on each conveying pipe (412). The water outlets (413) are located between two partition plates (42).

2. The floating purification device for river sewage outlets according to claim 1, characterized in that: The adjustment structure includes two handles (5), one end of each handle (5) is fixedly installed with a lifting adjustment screw (51), the two lifting adjustment screws (51) are respectively rotatably installed on two U-shaped frames (4), one end of the two lifting adjustment screws (51) is rotatably installed on one side of the same purification box (41), and the two lifting adjustment screws (51) are threaded on the mounting frame (1).

3. The floating purification device for river sewage outlets according to claim 1, characterized in that: The inner wall of the mounting bracket (1) is provided with a threaded hole (52), and the lifting adjustment screw (51) is threaded into the threaded hole (52).

4. The floating purification device for river sewage outlets according to claim 1, characterized in that: The filter structure includes a filter frame (61), which is fixedly installed on the bottom side of the positioning frame (6). The filter frame (61) is located inside the water inlet hopper (48), and the positioning frame (6) is movably installed on the water inlet hopper (48).

5. The floating purification device for river sewage outlets according to claim 1, characterized in that: The impurity recovery structure includes two drive shafts (71), with the two ends of the two drive shafts (71) rotatably mounted on two fixed plates (7), and drive rollers (72) fixedly sleeved on both drive shafts (71). The same drive belt (73) is installed on the two drive rollers (72). A linkage frame (74) is fixedly installed on one side of the drive belt (73). The linkage frame (74) is fixedly installed on the top side of the positioning frame (6). A recovery motor (75) is fixedly installed on one side of the fixed plate (7), and the output end of the recovery motor (75) is fixedly installed on one side of a corresponding drive shaft (71).

6. The floating purification device for river sewage outlets according to claim 1, characterized in that: A positioning frame (76) is fixedly installed on the top side of the mounting frame (1), and a recycling bin (77) is movably installed on the positioning frame (76).

7. The floating purification device for river sewage outlets according to claim 5, characterized in that: The inner wall of the positioning frame (76) is provided with a slot (78), and a card block (79) is movably installed in the slot (78). The card block (79) is fixedly installed on one side of the recycling bin (77).

8. The floating purification device for river sewage outlets according to claim 1, characterized in that: The inner wall of the fixing plate (7) has two pivot holes (710), and two drive shafts (71) are respectively rotatably installed in the two pivot holes (710).

9. The floating purification device for river sewage outlets according to claim 1, characterized in that: The inner wall of the mounting frame (1) is symmetrically provided with four guide sliding holes (414), and the two ends of the two U-shaped frames (4) are respectively slidably installed in the four guide sliding holes (414); the solid microbial carrier layer (44) is composed of multiple solid microbial carriers.

10. A floating purification method for river sewage outlets, characterized in that, The method includes the following steps: S1, Device placement: The floating purification device is placed at the river outlet, so that the mounting frame floats on the water surface. The distance between the float and the water surface is adjusted by the floating height of the stabilizing device to ensure that the device remains stable under changes in water flow. The design of the floating support structure allows the purification device to adapt to changes in river water level, thereby ensuring the continuity and effectiveness of the purification process; S2, Water intake operation: The electric pump (411) is started, and the sewage is pumped from the outlet into the inlet bucket (48) through the telescopic corrugated pipe (49) and the connecting pipe (410), so that the sewage can smoothly enter the purification system. During this process, the telescopic corrugated pipe can be freely adjusted according to changes in water level to ensure that the sewage can be continuously purified. S2. The wastewater is pumped into the system evenly. The inlet hopper (48) is set above the purification tank. Through reasonable water flow guidance design, the wastewater can enter the purification tank smoothly and reduce the generation of turbulence. S3. Solid microbial carrier layer treatment: The pumped wastewater is introduced into the purification tank (41) through the delivery pipe (412). The water passes through the partition water flow plate (43) and the solid microbial carrier layer (44) in sequence. A large number of functional microorganisms are attached to the solid microbial carrier layer (44). These microorganisms decompose organic pollutants in the water through metabolism to achieve preliminary purification. The partition water flow plate (43) is used to evenly distribute the water flow so that the wastewater can fully contact the solid microbial carrier layer and ensure the uniformity of the entire purification process. Uniformity and efficiency; S4, Braided curtain biofilm carrier treatment: After the water body is treated by the solid microbial carrier layer, it enters the braided curtain biofilm carrier (45). The braided curtain biofilm carrier provides a good attachment environment for microorganisms through its braided curtain structure, increasing the contact area with the water body. The microbial community growing on the biofilm can further decompose the organic pollutants in the water, further reducing the concentration of pollutants in the water body. The special design of the braided curtain structure allows the water body to be fully distributed between the braided curtains when the water flows through, forming a continuous biodegradation zone; S5, filtration process: After the water body is treated by the biofilm carrier, it continues to flow through the filter water passage plate (46) for physical filtration. The filter water passage plate adopts multiple layers of different The pore size is designed to trap fine particles and suspended solids in the water. Through multi-stage filtration, not only are particles in the water effectively removed, but the transparency of the water is also improved, which provides a guarantee for subsequent drainage and ensures that the final discharged water meets the water quality requirements. S6, Sewage circulation: The two partition plates (42) form a circulating water flow in the purification tank, ensuring that the water can repeatedly pass through the solid microbial carrier layer (44) and the braided biofilm carrier (45). This circulating flow method ensures that most pollutants in the water can fully contact the microorganisms and be efficiently degraded. The role of the partition plates is to limit the flow path of the water within a specific range, avoid water flow short-circuiting, and improve purification efficiency and stability.S7. Height Adjustment: The height of the purification box (41) is adjusted using the handle (5) and the lifting adjustment screw (51). The immersion depth of the purification box is adjusted according to the water level changes in the river to ensure that the water can fully enter the purification device under different water level conditions. The height adjustment function enables the equipment to maintain efficient operation even when the water level fluctuates greatly, enhancing the adaptability and flexibility of the purification system. S8. Impurity Recovery: During the pumping and purification process, floating impurities on the water surface are intercepted by the filter frame (61). When the impurities in the filter frame accumulate to a certain extent, the recovery motor (75) is started, and the recovery motor drives the transmission belt (73) to collect the impurities. Impurities are automatically transferred to the recycling bin (77) for centralized treatment. This step ensures that floating objects on the water surface do not obstruct the operation of the purification device and that impurities can be collected and cleaned regularly to ensure the long-term stable operation of the system. S9, Post-purification drainage: After multi-stage purification, the water is discharged into the river through the outlet (413). A flow control device is installed at the outlet to regulate the drainage speed and prevent adverse effects on the downstream river. After comprehensive treatment by the solid microbial carrier layer, the braided biofilm carrier, and the filter water-passing plate, the water quality is significantly improved and meets the set discharge standards, ensuring environmental friendliness.

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